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NEET Sample Paper NEET Sample Test Paper-9

  • question_answer
    A galvanometer of resistance \[400\Omega \]can measure current of 1MA. To convert it into a voltmeter of range \[8\text{ }V,\] the required resistance is:

    A)  \[4600\Omega \]                    

    B)  \[5600\Omega \]

    C)  \[6600\Omega \]                    

    D)  \[7600\Omega \]

    Correct Answer: D

    Solution :

    As we know that, \[ig(G+R)=V\]                 \[\therefore \]  \[{{10}^{-3}}(400+R)=8\]                                 \[R=7600\Omega \]


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